【作者】 靳红超； 昂志敏； 赵晓霞；

【Author】 JIN Hong-chao ANG Zhi-min ZHAO Xiao-xia (School of Computer and Information Hefei University of Technology Hefei230009 Anhui China)

【机构】 合肥工业大学计算机与信息学院；

【摘要】 GMSK是当前现代数字调制技术领域的研究热点之一,它通过在MSK调制器之前加入一个高斯低通滤波器来获得更加紧凑的频谱,在移动通信系统中获得广泛应用。本文利用MATLAB软件Simulink模块搭建计算机仿真模型并结合编写M文件,研究系统的信噪比误码率性能,对比不同信噪比下信号的眼图与星座图,给出仿真结果,展现GMSK传输系统的系统组成及各项性能指标,对设计GMSK通信系统具有借鉴作用。更多还原

【Abstract】 GMSK is one of the hot spots of modern digital modulation,it’s capable of getting compact spectrum by adding Gaussian low pass filter before going through MSK modulator,this technique is used widely in mobile communication system.In this article we take full use of Simulink module in MATLAB to build computer simulation model and compile M-file,so that we can achieve the simulation result and demonstrate the models and performance index of GMSK transmit system by making error rate curve with SNR and showing eye diagram and scatter plot in different SNR.This article may be useful for designing GMSK communication system.更多还原